Application of Bacillus sp. N7 to enhance ozone tolerance of various Oryza sativa in vegetative phase: Possible mechanism and rice productivity

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Anusaraporn, Siraphatsorn; Autarmat, Sawitree; Treesubsuntorn, Chairat; Thiravetyan, Paitip;

ผู้เผยแพร่: Elsevier

ปีที่เผยแพร่ (ค.ศ.): 2020

วารสาร: Biocatalysis and Agricultural Biotechnology (1878-8181)

Volume number: 25

นอก: 1878-8181

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082869277&doi=10.1016%2fj.bcab.2020.101591&partnerID=40&md5=e9dc2c9cbc303f7a06fe51500b1991cc

ภาษา: English-Great Britain (EN-GB)

ดูในเว็บของวิทยาศาสตร์ | ดูบนเว็บไซต์ของสำนักพิมพ์ | บทความในเว็บของวิทยาศาสตร์

บทคัดย่อ

Ozone (O3), a phytotoxic compound, can reduce crop productivity. Improving the O3 tolerance capacity of Oryza sativa L. var. indica cv. Pathum Thani 1 (PTT1) and Oryza sativa L. var. indica cv. RD41 (RD41) by adding a soil bacterium, Bacillus sp. N7, was investigated. After cultivation in an O3 open-top chamber fumigation system (70–150 ppb) for 10 days, the results showed that Bacillus sp. N7 had the ability to protect PTT1 and RD41 plants against O3 stress while maintaining rice quality. Bacillus sp. N7 addition resulted in a significant decrease in malondialdehyde (MDA) levels by enhancing ascorbic acid (AsA) contents. This contributed to the maintenance of a higher photosynthetic performance, including higher stomatal conductance, Fv/Fm ratio, chlorophyll a and chlorophyll b contents and increased O3 tolerance. In addition, plant inoculation with Bacillus sp. N7 led to increased relative water content (RWC) and indole-3-acetic acid (IAA) levels. We therefore suggest that Bacillus sp. N7 is a high-performance plant growth-promoting bacteria (PGPB) and can enhance the O3 tolerance capacity of plants while maintaining rice quality. © 2020 Elsevier Ltd

คำสำคัญ

Bacillus sp. N7, Ozone stress